Elegant DesignR18 smart ring features exquisite enamel craftsmanship, combining style with functionality in a sleek, waterproof design.Comprehensive Health MonitoringTracks heart rate, blood oxygen, exercise, and sleep patterns, providing real-time insights into your overall well-being.Multi-Sport ModesSupports various activities including running, cycling, jump rope, hiking, yoga, golf, and dance, recording exercise data in real-time.Long Battery LifeEnjoy 3-5 days of active use or 7-10 days on standby, with a convenient magnetic charging case compatible with easy power replenishment.Smart FeaturesRemote camera control function allows you to capture photos by shaking the ring, adding convenience to your photography.Durable ConstructionMade with epoxy resin and stainless steel, featuring a beautiful enamel surface compatible with both aesthetics and durability.Specifications:Basic ParameterRing Internal Diametermm 6 16.5mm, 7 17.3mm, 8 18.1mm, 9 18.9mm, 10 19.8mm, 11 20.6mm, 12 21.4mm, 13 22.2mmWeight3.0~4.0g Major functionSteps, distance, calorie counting,Heart rate, Blood pressure, Blood Oxygen, sleep Monitoring, Care compatible with faimilies(add friends), Remote camera ChipsetAC6323APPSmart HealthCompatible SystemAndroid 5.1 or Above, IOS8.0 or aboveRAM Memory4MbTypeNot supportedScreen sizeNot supportedResolution ratioNot supportedEncoderNot supportedTouch TypeNot supportedConnection parameterBTV5.0 Bluetooth-compatible chipsBT CallNot supportedWIFINot supportedNFCNot supportedSensorSensorSC7A20HGyroscopeNot supportedHeart RateGoodix GH3018GPSNot supportedBatteryTypeLithium PolymerCapacityRing: 20mAh, Charging case: 400mAhCharging MethodMagnetic ChargingAPP Software featuresSmart HealthSteps, Miles, Calories, Motion data recordingHeart rate monitoring, Blood pressure, blood oxygen monitoring, Sleep monitoring, body fatigue assessmentMultiple exercise modesRunning, cycling, skipping, hiking, mountaineering, yoga, golf, dancingSupported languages: English, Simplified Chinese, Traditional Chinese, Russian, Ukrainian, German, French, Italian, Spanish, Portuguese, Polish, Greek, Romanian, Hungarian, Czech, Slovak, Irish, Croatian, Swedish, Danish, Finnish, Arabic, Farsi, Norwegian, Japanese, Korean, Thai, VietnameseOther PartmeterWaterproof LevelIP68Charging timearound 1-2 hoursLife time3-5 days, Stand by time 7-10 daysAppearance materialEpoxy Resin+stainless steel (Color enamels)Package included:1 x Smart Ring1 x Charging Case1 x Charging Cable1 x English Instruction Manual